01 -
Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 -
In a large mixing bowl, mix granulated sugar and lemon zest with your fingers to release fragrance.
03 -
Add butter and brown sugar. Mix on medium-high speed for 3-4 minutes until light and fluffy.
04 -
Add egg yolk, vanilla extract, and lemon juice to the mixture. Stir until combined.
05 -
Slowly mix in salt, baking powder, baking soda, and flour. Stop mixing when some flour remnants remain to avoid overmixing.
06 -
Chop frozen raspberries into small pieces. Gently fold them into the cookie dough. Avoid overmixing to prevent the juice from bleeding.
07 -
Scoop the dough into large balls (about 3 tablespoons each). Place five dough balls on each prepared baking sheet. Sprinkle with flaked salt.
08 -
Bake for 12-15 minutes until edges are lightly golden brown. Let cookies cool on the baking sheet to finish cooking internally.